This article is devoted to the specific of soviet informative politics in relation to an accident on Chornobyl nuclear power plant that was conducted during 1986. A conclusion that this politics was determined, from one side, by suppressing of information about an accident, and, from other side, by activation of the counterpropaganda events sent to accusing of the «capitalist world» of distribution of untruthful and politically accented information is well-proven.